Electronics Forum | Mon Jun 22 21:42:02 EDT 1998 | Dave F
| We are discussing the importance of pre-hating components or the pcb in order to repair the board. I am interested in other peoples opinions | on pre-heating. Bill: Some folks we talking about preheating capacitors earlier this month in the threa
Electronics Forum | Tue Aug 07 20:53:14 EDT 2001 | davef
slowing-down the conveyor to allow the solder to heat these balls more. But that may not be the answer, because if the flux is exhausted, more heat will not help. Then if the flux is exhausted, the answer is to crank the belt. Two different answer
Electronics Forum | Mon Oct 21 12:18:22 EDT 2002 | John S
We're looking at a new assembly that will require an SMT heat sink. Can anyone recommend potential vendors for this part? It is new to us, so we're having to start from scratch. Thanks John
Electronics Forum | Wed Mar 19 21:01:49 EST 2003 | Rob
I would suggest creating a special reflow profile, heating the board up to 130C about 50 c below eutectic point (183C). Then applying heat to only the BGA, this will prevent thermal shock to surrounding components.
Electronics Forum | Wed May 14 17:56:19 EDT 2003 | bradlanger
Does anybody have any advice on how to get a decent profile out of a 4 zone IR oven? Should top heat and bottom heat be proportionate? Are there any tricks to use?
Electronics Forum | Wed Dec 17 13:04:37 EST 2003 | Bill
Thanks for the information, --We would like to replace the conveyor 'belt' rather than replace the whole conveyor. Do you know of any sources for the belting material? (ESD, heat and chemical resistant) Best Regards, Bill
Electronics Forum | Mon Mar 29 11:51:55 EST 2004 | Claude_Couture
Hi all, Anyone familiar with BTU oven VIP-70. The control screen indicates that it is in IDLE mode. The recipe is running, but no heat is applied. The contactor for the heat is ON. All the electrical looks ok. I can't seem to be able to contact BTU,
Electronics Forum | Tue Apr 27 16:37:16 EDT 2004 | babe
Well I would think that the heat slug would work to a point. Obviously made to dissipate heat from the component. That said it wouldn't hurt to cover that also with aluminum foil. Your not wrapping a present, your simply tenting the component. IR wil
Electronics Forum | Sun Aug 01 11:27:40 EDT 2004 | haran
What is the best epoxy attachment method for Heat Sink?The operator always miss the solvent dispensing application prior to epoxy dispense which cause the heatsink falling off at customer site as well as in the factory?Any advise?
Electronics Forum | Mon Nov 15 18:51:46 EST 2004 | grayman
I would highly recomend an 8 zones (top and bottom heaters) oven as it has better flexibility than 7 zones. However, I would also would like to check for the heated length. Some oven has many zones but the heated length is small. Arman